T-Shirt Fabric Guide for Printing: Cotton, Polyester and Blends Explained

The fabric of a T-shirt shapes how it feels, how it fits, how it wears and how a printed design looks and lasts. Two shirts that look the same on a hanger can behave very differently after a print and a few washes. This guide explains the common T-shirt fabrics, what the weight numbers mean, how each fabric takes DTF printing and how to choose for a particular job. FabricForge prints T-shirts and hoodies from a single item upwards, and our parcels go by DPD, Royal Mail, Parcelforce or our relay parcel service.

The main fabrics

100% cotton

The most common choice. Cotton is soft, breathable and familiar, and it takes DTF printing very well. It can shrink slightly on the first washes, particularly if dried hot, and it creases more than synthetic blends. For everyday wear, gifts and most printed designs, cotton is the dependable default.

Ring-spun cotton

A finer cotton that has been spun to produce a smoother, softer surface. It feels a little more premium and gives a smooth base for photographs and detailed artwork. If you want a T-shirt that feels noticeably softer, ring-spun is worth asking about.

Cotton-polyester blends

A mixture of cotton and polyester combines the softness of cotton with the durability and crease resistance of polyester. Blends shrink less and dry faster, which suits sportswear and workwear. DTF prints well on blends, though a very high polyester content needs care with heat, which we manage in production.

100% polyester

Common in sportswear and performance tops. It is light, quick-drying and resistant to shrinking, but it is less breathable than cotton and can feel synthetic. Polyester is the fabric sublimation is designed for, but DTF also prints on it. See DTF vs sublimation for the comparison and DTF for sportswear for how it behaves on sports kit.

Organic and sustainable cotton

Grown with fewer synthetic inputs and often made under certified conditions. It feels like regular cotton and prints in the same way. If sustainability matters to your brand, read our page on sustainable DTF printing.

What GSM means

GSM stands for grams per square metre and describes how heavy the fabric is. A lighter T-shirt, around 140 to 160 GSM, is thin and cool and suits summer, layering and events where people will be warm. A mid-weight shirt, around 180 to 190 GSM, is the all-round choice and feels solid without being heavy. A heavy shirt, around 200 GSM and above, feels substantial and suits premium gifts and cooler weather. Heavier fabric usually keeps its shape better and shows less through, but it is warmer to wear.

How fabric affects the print

DTF prints sit on the surface and bond to the fibres, so a smooth, tightly woven fabric gives the cleanest result. A very coarse or textured fabric can show through fine detail. Stretchy fabrics need a flexible print, and the film layer in DTF stays flexible, which is why it handles most T-shirts without cracking. Dark fabrics are fine because the process includes a white layer. Our page on the best T-shirts for DTF printing goes into the practical choices.

Shrinkage and care

Cotton can shrink a little the first time it is washed, and heat makes it worse. Washing inside out at a low temperature and drying gently keeps both the fit and the print in good shape. Blends hold their size better. The care guide sets out the short version, and how long DTF prints last explains durability.

Choosing for a particular job

• Gifts: ring-spun or mid-weight cotton for a soft, premium feel.
• Staff and workwear: a cotton blend, which handles frequent washing and creasing.
• Events and festivals: a lighter cotton, comfortable in warm crowds.
• Sports and active use: polyester or blend that dries quickly.
• Children's clothing: soft cotton for sensitive skin.
• Brand merchandise: a mid to heavy cotton that feels worth keeping.

Fit and cut matter as much as fabric

A fabric choice sits alongside the cut. A standard fit, an oversized fit and a ladies' cut all change how the same fabric looks on a person. Oversized cuts drape differently and make a larger print look natural. Our sizes run from S to 5XL in adult, oversized from S to 3XL and children's from 3 to 16. For hoodies, see the hoodie size guide, and for design decisions the print placement guide.

Colour and fabric together

Fabric colour changes how a print appears. Light prints pop on dark shirts, and dark prints look crisp on pale ones. Some mid-tone fabrics, such as heather greys, have a slightly flecked surface that softens fine detail. If your design has small text or thin lines, a plain solid colour is the safest base. We can show your design on different colours in the mockup so you can judge.

How to order

1. Message us with the garment type, colour, sizes and the date you need it.
2. Send your artwork as a PNG or PDF.
3. We confirm the details and take payment before preparing the mockup.
4. Check the mockup; up to five rounds of changes are included.
5. When you approve, we print and dispatch. Next-day UK delivery is possible after approval, depending on timing.

Looking after the fabric you choose

Whatever fabric you pick, care decides how long the shirt looks good. Turn the shirt inside out before washing, use a low temperature, avoid fabric softener on printed areas and dry it away from direct heat. Ironing, if needed, should be done inside out or with a cloth over the design. These small habits keep cotton soft, stop blends from pilling and protect the print.

Fabric and skin comfort

Comfort matters most for children, for people with sensitive skin and for garments worn all day. Soft ring-spun and organic cottons are generally gentler than rough synthetics. Check the care label for any finishes, and wash new garments once before wearing. If you are ordering for a school or nursery, tell us so we can suggest soft options.

Why heavier is not always better

A heavy shirt feels premium in the hand, but it is warmer to wear and slower to dry. For events in summer, or for active roles such as catering and festival crew, a lighter fabric is far more comfortable. Heavier cotton suits gifts, merchandise and cooler weather. Match the weight to how and where the shirt will actually be worn, not just to how it feels in a shop.

Seasons and layering

A summer T-shirt that is worn alone should breathe well, while a shirt that sits under a hoodie or jacket should be smooth and not too thick. Think about where the print will sit when layered, as a large chest print may be hidden under a coat in winter. If a design must be visible all year, consider a back print or a hoodie as the outer layer.

Frequently Asked Questions

What fabric is best for a printed T-shirt?

Cotton or a cotton-rich blend is the most reliable all-round choice for DTF.

Does DTF work on polyester?

Yes, with the right settings, though dark or stretchy polyester needs care.

What does GSM mean?

Grams per square metre, a measure of how heavy the fabric is.

Will my T-shirt shrink?

Cotton may shrink slightly, especially with hot washing. Wash inside out at a low temperature.

Is there a minimum order?

No. A single T-shirt is fine.

See also personalised T-shirt printing, DTF T-shirt printing UK and get a quote.